Use or to indicate whether the given object is an element of the given set.


Mathematics

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Solve the problem.The area of a circle varies directly as the square of the radius of the circle. If a circle with a radius of  has an area of 78.5 square inches, what is the area of a circle with a radius of 18 inches?

A. 1019.76 in2 B. 1017.36 in2 C. 56.52 in2 D. 113.04 in2

Mathematics

Solve.x2 + y2 = 40x2 - y2 = 32

A. (6, 2), (-6, 2), (6, -2), (-6, -2) B. (6, 2), (2, 6), (-6, -2), (-2, -6) C. (-6, -2), (-2, -6) D. (6, -2), (6, 2)

Mathematics

Write the set by listing its elements.{z|z is a number whose absolute value is 7}

A. {-7, ..., 7} B. {-7, 7} C. {7} D. {-7}

Mathematics

Write the statement in words and decide whether it is true or false.5 ? 3

What will be an ideal response?

Mathematics